Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc

6902115: G1:assert(ignore_max_completed||thread->is_Java_thread()||SafepointSynchronize::is_at_safepoint())
Summary: Remove invalid assert and mangle filler objects in TLABs that are being retired.
Reviewed-by: ysr, jmasa

Summary: Block too small to split was not correctly putback to free lists.
Reviewed-by: ysr

Reviewed-by: kvn, twisti

Reviewed-by: kvn, twisti

Summary: C2 needs some additional optimizations to be able to handle MethodHandle invokes and invokedynamic instructions at the best performance.
Reviewed-by: kvn, never

Summary: C2 implementation for invokedynamic support.
Reviewed-by: kvn, never

Summary: EA incorrectly identifies escape state of an allocation passed as call argument.
Reviewed-by: never

6637203: Classunloading messages go to stdout rather than Xloggc file, causing hangs when stdout is closed
Summary: Decoupled TraceClassUnloading from verbose:gc, JVMTI_VERBOSE_GC and PrintGC[Details], making it settable in a manner identical to TraceClassLoading. Reverted an inadvertent change of TraceClassUnloading output in a previous changeset from gclog back to tty.
Reviewed-by: coleenp, dholmes, jmasa, poonam

Summary: During the work for 6829187 we have fixed a number of basic bugs which are logically grouped with 6815692 and 6858164 but which must be reviewed and pushed separately.
Reviewed-by: kvn, never

Summary: We need a way to walk chained method handles in the JVM to call the right methods and to generate required bytecode adapters for the compilers.
Reviewed-by: kvn

Summary: Zero currently won't build on zSeries or PowerPC machines with assertions turned on.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Smaller fixes to ensure that Zero still works with non-standard options.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Autonomic per-worker free block cache sizing, tunable coalition policies, fixes to per-size block statistics, retuned gain and bandwidth of some feedback loop filters to allow quicker reactivity to abrupt changes in ambient demand, and other heuristics to reduce fragmentation of the CMS old gen. Also tightened some assertions, including those related to locking.
Reviewed-by: jmasa

Reviewed-by: kvn

Summary: Reworked the concurrent refinement: threads activation, feedback-based threshold adjustment, other miscellaneous fixes.
Reviewed-by: apetrusenko, tonyp

6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
Reviewed-by: dholmes, acorn, jrose

6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
Reviewed-by: kvn, never, dholmes, ysr

Summary: Source changes for older compilers plus makefile changes.
Reviewed-by: xlu

Summary: changes for method handles and invokedynamic
Reviewed-by: kvn

Summary: If a JVMTI agent asks for version 1.0, then it should get version 1.0 semantics.
Reviewed-by: dholmes, ohair

Summary: Return error on invalid JVMTI_PHASE instead of asserting.
Reviewed-by: dholmes, ohair

Summary: If GC crashed with java thread involved, print out the java stack trace in error report
Reviewed-by: never, ysr, coleenp, dholmes

Summary: Change CollectionSetChooser::printSortedHeapRegions to handle null entries in _markedRegions growable array.
Reviewed-by: jmasa, tonyp, iveresov

Summary: Move instance store's memory users to corresponding memory slices when updating its memory edge.
Reviewed-by: never

Summary: Add missing checks for MemBar nodes in EA.
Reviewed-by: never

Reviewed-by: kvn

6908208: UseCompressedOops: array_size() returns incorrect size for MAX_INT object array following 6906727
Summary: In array_size() cast to an unsigned to avoid overflow of intermediate value.
Reviewed-by: kvn, tonyp, jmasa, jcoomes, coleenp

Summary: ensure that max and committed are non-zero (currently: at least as large as the region size).
Reviewed-by: iveresov, mchung

Summary: size_t max_size() hides size_t max_size() const.
Reviewed-by: jmasa, ysr

Summary: G1 reports committed memory instead of reserved memory from the Runtime.maxMemory() method
Reviewed-by: ysr, jmasa

Summary: Introduced a new write_ref_array(HeapWords* start, size_t count) method that does the requisite MemRegion range calculation so (some of the) clients of the erstwhile write_ref_array(MemRegion mr) do not need to worry. This removed all external uses of array_size(), which was also simplified and made private. Asserts were added to catch other possible issues. Further, less essential, fixes stemming from this investigation are deferred to CR 6904516 (to follow shortly in hs17).
Reviewed-by: kvn, coleenp, jmasa

Summary: Skip the secondary induction variable handling if it is dead
Reviewed-by: never, kvn

Reviewed-by: kvn
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Make OptimizeStringConcat a product VM option(contributed by never)
Reviewed-by: never

Summary: Call sun.jkernel.DownloadManager.setBootClassLoaderHook during the kernel VM initialization
Reviewed-by: alanb, coleenp, acorn

Summary: Fixes a race on the dirty card queue completed buffer list between worker thread(s) performing a flush of a deferred store barrier (enqueueing a newly completed buffer) and worker thread(s) in the RSet updating code claiming completed buffers. Removed the routine that removes elements from the completed update buffer queue using a CAS.
Reviewed-by: ysr, tonyp

Summary: Set minimum heap size to min(OldSize + NewSize, MaxHeapSize) in Arguments::set_heap_size().
Reviewed-by: kvn, ysr, tonyp

Summary: It introduces the necessary memory pools for G1.
Reviewed-by: mchung, ysr

Summary: Remove the assert.
Reviewed-by: twisti